Locomotive



(N0 Ho'iiel.) 2 Sheets-STieetL J. BLASDALE. LOGOMOTIVBI No. 367,335. Patented July 26, 1887.

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2 Sheets-Sheet 2 (No Model.)

LOOOMOTIVB.

Patented July 26, 1887'.

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LL. 6 3 (1M ja ISM UNITED STATES PATENT OFFICE.

JOHN BLASDALE, OF BALTIMORE, MARYLAND, ASSIGNOR TO THETANNER & DELANEY ENGINE COMPANY, or RICHMOND, VIRGINIA.

LOCOMOTIVE.

SPECIFICATION forming part of Letters Patent NO. 367,335, dated July 26, 1887.

Application filed April 20, 1587.

. To all whom it may concern:

Be it known that I, JOHN BLASDALE, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Locomotives,

of which the following is a specification.

My I invention relates to improvements in locomotives which are intended to travel on rough and uneven tracks, and where, for ob- [O vious reasons,itis necessary the driving-wheels should have a free lateral movement independent of each other.

The invention is illustrated in the accompanying drawings, in which Figure 1 is a side cle- I 5 vation showing the frame, axles, pedestals, and driving-wheels. Fig. 2 is a plan of one side of the frame,showing one driving-wheel in section. Fig. 3 is a section of one of the axle-boxes. Fig. 4 is a section of one wheel and axle-box,

the one shown in Fig. 3. Fig. 5 is a View of a pedestal axle-box. Fig. 6 is an elevation of a driven sprocket, larger scale. Fig. 7 is an edge view of a driven sprocket. Fig. Sis a section of a driving-wheel and sprocket. Figs. 9 and 10 show the manner of attaching the driven sprocket to a wheel so as to have an elastic connection.

The letter A designates the frame, which may be of channel-iron, flat bar-iron, or any other suitable section; B, the driving-wheels,which have grooved rims ortires a to take 011 the pole-track b. The frame rests on pedestals O, and the axle-boxes c fit in the pedestals and may move up and down, while a spring, d, is interposed between the frame and axle-box. The axles e do not turn, but each driving-wheel .13 turns loosely on the axle.

One feature of my invention is the axle-box extension or sleeve 0. This box-extension or sleeve is attached rigidly to the axle-box c and projects outward for the wheel B to turn on. The box extension surrounds the axle e and serves as a reenforce for the axle. Each driving-wheel by preference, though not necessarily, has a bushing, f, of suitable metal, in its hub,which is in contact with the box extension or sleeve c. These bushings are interchangeable. A collar, 9, is on the end of the axle e to confine the driving-wheel B. It will the latter constructed somewhat different from Serial No. 235,452. (No model.)

be seen the hub of the driving-wheel revolves on the box-extension and not on the axle and has room for play or lateral movement between the collar 9 and the face ofthe axle-box c. The box extension or sleeve 0 protects the axle 5 from wear and abrasioinwhich is so great and rapid in this class of locomotives as to be very expensive. v

The box extension or sleeve 0 is preferably made separate from the axle-box 0, but secured o0 rigidly thereto, as shown in Fig. 4, where a pin, 0", is shown passing through the axle box 0, sleeve 0', and axle c. When thus made, the sleeve may be renewed at little expense and without removing the axle. The sleeve may, however, be made integral with the axleb'ox, as shown in Fig. 3.

A master-shaft, D, may have motion imparted to it in any suitable way by a train of gearing driven by an ordinary reversing-ea 7o gine. Each end of the master-shaft is provided with two drive-sprockets, h, and each drivingwheel B has a driven sprocket, E, attached to it. Each drive-sprocket h is connected with one of the driven sprockets E by a drive-chain, 5

i. The driven sprockets E are secured to the driven wheels B by a special construction. (Shown in Figs. 6 to 10, inclusive.) Each driven sprocket E has on one side twZT--- or more lugs, 7c, (in the present instance four are used,) located equidistant around the hub.

A hole for abolt, Z, passes through the body of the sprocket-wheel,and also through the lug. The driver-wheel B has on one sidetwo or more sockets, 7c, (in the present instance four.) The 8 sockets are larger than the lugs,andeach socket receives one of the said lugs k. The bolt-hole Z through the driver-wheel spoke at is elongaed in the direction of a circular plane of which the axle is the center. Two sides of each sprocket k arelined with rubberm. It will thus be seen that while the bolt Z secures the driven sprocket E to the wheetB, the said sprocket is not rigidly secured thereto, as the lugs k, the sockets with rubber lining a, and the elongated bolt-hole Z provide an elastic connection. When the driver-engine is started, stopped, or reversed, instead of all of the shock and strain coming on the drive chains 6, the driven sprocket E will yield by the compressionof the rubber lining n, and thereby the liability of breaking the drive-chains, a thing of common occurrence, is obviated.

Having described my invention, I claim and desire to secure by Letters Patent of the United States 1. The combination oft-he axle, the axle-box 0, having an extension or sleeve, 0, and the wheel turning freely on the said sleeve.

2. The combination of the axle, an axle-box, c, a sleeve, 0, around the axle and attached by one end to the axle-box, a confining-collar, g, on the end of the axle, and a wheel, B, turning freely and also having lateral movement on the said sleeve.

3. The combination of the axle, the axle-box 0, having an extension or sleeve, 0, which surrounds the axle, a wheel, B, provided with a bushing, f, and turning freely and also moving laterally on said sleeve.

4. The combination of a wheel having sockets k, provided with an elastic lining, and a sprocketwheehE, having lugs h, each of which occupies one of the elasticlined sockets.

In testimony whereof I affix my signature in 25 the presence of two Witnesses.

JOHN BLASDALE.

Witnesses:

B. F. BOYDEN, JNo. T. llIADDOX. 

